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33768243 = 3213926993
BaseRepresentation
bin1000000011010…
…0001100110011
32100112121022200
42000310030303
532121040433
63203434243
7560011455
oct200641463
970477280
1033768243
1118074643
12b385983
136cc4212
1446b02d5
152e70613
hex2034333

33768243 has 12 divisors (see below), whose sum is σ = 49129080. Its totient is φ = 22349376.

The previous prime is 33768233. The next prime is 33768247. The reversal of 33768243 is 34286733.

It is not a de Polignac number, because 33768243 - 25 = 33768211 is a prime.

It is a super-2 number, since 2×337682432 = 2280588470614098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33768198 and 33768207.

It is not an unprimeable number, because it can be changed into a prime (33768247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12246 + ... + 14747.

It is an arithmetic number, because the mean of its divisors is an integer number (4094090).

Almost surely, 233768243 is an apocalyptic number.

33768243 is a deficient number, since it is larger than the sum of its proper divisors (15360837).

33768243 is a wasteful number, since it uses less digits than its factorization.

33768243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27138 (or 27135 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 33768243 is about 5811.0449146431. The cubic root of 33768243 is about 323.2234202049.

The spelling of 33768243 in words is "thirty-three million, seven hundred sixty-eight thousand, two hundred forty-three".

Divisors: 1 3 9 139 417 1251 26993 80979 242937 3752027 11256081 33768243